WO1994012905A1 - Dispositif optique de conversion de l'angle de champ du type a reflexion - Google Patents

Dispositif optique de conversion de l'angle de champ du type a reflexion Download PDF

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Publication number
WO1994012905A1
WO1994012905A1 PCT/JP1993/001743 JP9301743W WO9412905A1 WO 1994012905 A1 WO1994012905 A1 WO 1994012905A1 JP 9301743 W JP9301743 W JP 9301743W WO 9412905 A1 WO9412905 A1 WO 9412905A1
Authority
WO
WIPO (PCT)
Prior art keywords
mirror
primary
reflected light
primary mirror
rotationally symmetric
Prior art date
Application number
PCT/JP1993/001743
Other languages
English (en)
Japanese (ja)
Inventor
Takeshi Kuroda
Akito Takeya
Kenichi Nishiguchi
Akira Ichikawa
Original Assignee
Mitsubishi Denki Kabushiki Kaisha
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Denki Kabushiki Kaisha filed Critical Mitsubishi Denki Kabushiki Kaisha
Priority to DE4396177T priority Critical patent/DE4396177T1/de
Priority to DE4396177A priority patent/DE4396177C2/de
Priority to JP51298394A priority patent/JP3220462B2/ja
Publication of WO1994012905A1 publication Critical patent/WO1994012905A1/fr

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B17/00—Systems with reflecting surfaces, with or without refracting elements
    • G02B17/02—Catoptric systems, e.g. image erecting and reversing system
    • G02B17/06—Catoptric systems, e.g. image erecting and reversing system using mirrors only, i.e. having only one curved mirror
    • G02B17/0694—Catoptric systems, e.g. image erecting and reversing system using mirrors only, i.e. having only one curved mirror with variable magnification or multiple imaging planes, including multispectral systems
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/06—Panoramic objectives; So-called "sky lenses" including panoramic objectives having reflecting surfaces
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B17/00—Systems with reflecting surfaces, with or without refracting elements
    • G02B17/02—Catoptric systems, e.g. image erecting and reversing system
    • G02B17/06—Catoptric systems, e.g. image erecting and reversing system using mirrors only, i.e. having only one curved mirror
    • G02B17/0605—Catoptric systems, e.g. image erecting and reversing system using mirrors only, i.e. having only one curved mirror using two curved mirrors
    • G02B17/061—Catoptric systems, e.g. image erecting and reversing system using mirrors only, i.e. having only one curved mirror using two curved mirrors on-axis systems with at least one of the mirrors having a central aperture
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/0816—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements
    • G02B26/0825—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements the reflecting element being a flexible sheet or membrane, e.g. for varying the focus

Definitions

  • the present invention relates to a reflection-type angle-of-view conversion optical device for changing the angle of view, such as a video device.
  • FIG. 31 is a cross-sectional view showing a conventional ultra-wide-angle (fisheye) lens disclosed, for example, in Japanese Patent Publication No. 50-304457, in which 1 is the object to the left of the figure.
  • the optical axis of the incident light arriving from (not shown), 2 is a refraction lens for refracting the incident light from the object.
  • This super-wide-angle lens is a refraction optical system, and when attached to a single-lens reflex camera, it can capture a 180-degree field of view in the diagonal direction of the lie.
  • Fig. 32 shows an example of an optical system that uses a reflector, although it has a narrow field of view.
  • the present invention has been made to solve the above-described problems, and a reflection-type angle-of-view conversion optics that enhances intensity and facilitates addition by using a reflector even in a wide-angle optical system.
  • the aim is to obtain a device. Disclosure of the invention
  • a reflection-type angle-of-view conversion optical device includes a primary mirror having a rotationally symmetrical reflecting surface and reflecting incident light as primary reflected light, and a rotation about the same rotationally symmetric axis as the primary mirror.
  • a sub-mirror that has a symmetrical reflecting surface is arranged opposite to the main mirror, reflects the primary reflected light as secondary reflected light, and condenses it at the viewpoint; and supports the main mirror and sub-mirror and reflects incident light.
  • a transparent supporting member This allows the primary mirror and the secondary mirror to reflect the incident light that is incident at a wide angle on the primary mirror as primary reflected light to the secondary mirror, and the primary reflected light is reflected on the secondary mirror by the secondary mirror. It is focused on the viewpoint as reflected light. Therefore, it becomes possible to condense wide-angle incident light to the viewpoint.
  • the primary mirror and secondary mirror can be processed with materials such as metal.
  • the reflection-type angle-of-view conversion optical device has a reflection surface formed of a plurality of different concentric partial mirrors having a rotationally symmetric shape and transmitting incident light.
  • a primary mirror that reflects the primary reflected light, and a reflective surface that has a rotationally symmetric shape with the same rotationally symmetric axis as the center, and is placed opposite to the primary mirror and the primary reflected light is a secondary reflected light
  • a secondary mirror that reflects as light and collects it at the viewpoint,
  • a supporting and moving member for slidably supporting at least one of the mirrors in the direction of the rotationally symmetric axis and transmitting incident light.
  • the primary mirror and the secondary mirror can reflect the incident light incident at a wide angle to the secondary mirror as primary reflected light at the primary mirror, and the primary reflected light to the secondary mirror at the secondary mirror. It is focused on the viewpoint as reflected light. Therefore, it becomes possible to condense wide-angle incident light to the viewpoint.
  • the distance between the primary mirror and the secondary mirror according to the angle of the primary reflected light that is reflected by a plurality of different concentric partial mirrors of the primary mirror at the support moving member a different widening is achieved. It becomes possible to focus the incident light at an angle to the viewpoint.
  • the primary mirror and the secondary mirror can be processed with materials such as metal.
  • a reflection type angle-of-view conversion optical device has a plurality of primary mirrors having a rotationally symmetrical reflecting surface and reflecting incident light as primary reflected light, and a rotationally symmetrical reflecting surface.
  • a supporting rotation member that makes the rotational symmetry axis coincide with the rotational symmetry axis of the sub-mirror and transmits the incident light, and the angle between the rotational symmetry axis of both mirrors and the incident light when each primary mirror is combined with the sub-mirror And the angle formed between the rotationally symmetric axis and the secondary reflected light It is obtained by forming the shape of the reflecting surface of the number of the main mirror (by this, by a primary mirror and a secondary mirror, reflecting the light incident on the wide angle to the secondary mirror as a primary reflected light by the primary mirror In addition, the primary reflected light is converged on the viewpoint as a secondary reflected light by the secondary mirror, so that a wide angle incident light can be condensed on the viewpoint.
  • the reflection-type angle-of-view conversion optical device includes a primary mirror having a rotationally symmetric reflection surface and reflecting incident light as primary reflected light, and a rotation mirror having a rotationally symmetric reflection surface.
  • auxiliary mirror is supported rotatably about the rotation axis in the direction set in the above, and one of a plurality of sub-mirrors is selectively combined with the primary mirror according to the rotational position, and the rotational symmetry axis of the sub-mirror is set to the rotational symmetry axis of the primary mirror And a supporting rotating member that transmits incident light.
  • the angle between the rotationally symmetric axis of both mirrors and the incident light, the rotationally symmetric axis, and the secondary reflected light when each sub-mirror is combined with the primary mirror are provided. And the shape of the reflecting surfaces of the multiple sub-mirrors so that the angles It is obtained by molding.
  • the incident light that is incident at a wide angle is reflected by the primary mirror and the secondary mirror as primary reflected light by the primary mirror to the secondary mirror, and the primary reflected light is reflected by the secondary mirror. Focus on the viewpoint as secondary reflected light. Therefore, it becomes possible to condense wide-angle incident light to the viewpoint.
  • the shape of the reflecting surface is shaped so that the angle between the rotationally symmetric axis and the incident light and the angle between the rotationally symmetric axis and the secondary reflected light are different from each other on the supporting rotating member.
  • the secondary mirror-it is possible to focus the incident light at different wide angles to the viewpoint.
  • the primary mirror and the secondary mirror can be processed with materials such as metal.
  • a reflection type angle-of-view conversion optical device has a plurality of primary mirrors having a rotationally symmetrical reflecting surface and reflecting incident light as primary reflected light, and a rotationally symmetrical reflecting surface. It is selectively combined with one of the multiple primary mirrors to reflect the primary reflected light from the primary mirror as secondary reflected light and collect it at the viewpoint.
  • a supporting / moving member that allows the rotational symmetry axis of the primary mirror to coincide with the rotational symmetry axis of the sub-mirror and transmits the incident light;
  • the shape of the reflecting surfaces of the plurality of primary mirrors is shaped so that the angle between the primary mirror and the rotationally symmetric axis and the angle between the secondary reflected light have different relationships.
  • the primary mirror and the secondary mirror cause the incident light that is incident at a wide angle to be reflected by the primary mirror as primary reflected light to the secondary mirror, and the primary reflected light is reflected by the secondary mirror. Focus on the viewpoint as secondary reflected light.
  • also c makes it possible to focus the wide-angle incident light on the viewpoint, the angle between the rotational symmetry axis of the incident light by the support moving member and the rotational symmetry axis and the angle between the secondary reflection beam
  • the primary mirror and the secondary mirror can be processed with materials such as metal.
  • the reflection-type angle-of-view conversion optical device includes a primary mirror having a rotationally symmetric reflection surface and reflecting incident light as primary reflected light, and a rotation mirror having a rotationally symmetric reflection surface.
  • a primary mirror having a rotationally symmetric reflection surface and reflecting incident light as primary reflected light
  • a rotation mirror having a rotationally symmetric reflection surface.
  • the sub mirror is slidably supported in the direction set as described above, and one of the plurality of sub mirrors is selectively combined with the primary mirror according to the sliding position so that the rotational symmetry axis of the sub mirror coincides with the rotational symmetry axis of the primary mirror.
  • a supporting and moving member that transmits incident light.
  • the angle between the rotationally symmetric axis of both mirrors and the incident light, the rotationally symmetric axis, and the secondary reflected light The shapes of the reflecting surfaces of the plurality of sub-mirrors were shaped so that the angles formed differ from each other. It is. This allows the primary and secondary mirrors to The incident light that is incident at a wide angle is reflected by the primary mirror as primary reflected light to the secondary mirror, and the primary reflected light is focused on the viewpoint as secondary reflected light by the secondary mirror. Therefore, it becomes possible to condense the wide-angle incident light to the viewpoint.
  • a plurality of sub-shapes whose reflection surfaces are shaped so that the angle between the rotationally symmetric axis and the incident light and the angle between the rotationally symmetric axis and the secondary reflected light are different from each other in the support moving member.
  • the primary mirror and the secondary mirror can be processed with materials such as metal.
  • a reflection type angle-of-view conversion optical device includes a primary mirror having a rotationally symmetrical reflecting surface and reflecting incident light as primary reflected light, and a center of rotation about the same rotationally symmetric axis as the primary mirror.
  • a secondary mirror that has a rotationally symmetrical reflective surface and reflects the primary reflected light from the primary mirror as secondary reflected light and condenses it at the viewpoint, and at least one of the primary mirror and secondary mirror is rotated as described above.
  • a supporting and moving member slidably supported in the direction of the symmetric axis and transmitting the incident light, wherein the angle between the rotationally symmetric axis and the incident light and the angle between the rotationally symmetric axis and the secondary reflected light are as described above.
  • the shapes of the reflection surfaces of the primary mirror and the secondary mirror are formed so as to have a different relationship depending on the distance between the primary mirror and the secondary mirror slid by the support moving member.
  • the primary mirror and the secondary mirror can be processed with materials such as metal.
  • the reflection-type angle-of-view conversion optical device has a rotationally symmetric shape.
  • a primary mirror that has a reflective surface and reflects incident light as primary reflected light, and a primary reflected light from the primary mirror that has a reflective surface that is rotationally symmetric about the same rotationally symmetric axis as the primary mirror
  • a secondary mirror that reflects the light as secondary reflected light and condenses it at the viewpoint, and a support member that supports the primary mirror and the secondary mirror and transmits incident light, and at least one of the primary mirror and the secondary mirror has an object. It is provided with a transmission section for transmitting the incident light from the light source.
  • the primary mirror and the secondary mirror can make the incident light incident at a wide angle into primary reflected light at the primary mirror and reflected to the secondary mirror, and the primary reflected light to the secondary mirror at the secondary mirror. It is focused on the viewpoint as reflected light. Therefore, it becomes possible to focus wide-angle incident light at the viewpoint.
  • the transmitting portion provided on at least one of the primary mirror and the secondary mirror transmits the incident light, and the incident light transmitted through the transmitting portion together with the reflected light condensed at the viewpoint and reflected by the primary mirror and the secondary mirror.
  • the primary mirror and secondary mirror can be machined with materials such as metal.
  • a reflection type angle-of-view conversion optical device includes a primary mirror having a rotationally symmetrical reflecting surface and reflecting incident light as primary reflected light, and a center of rotation about the same rotationally symmetric axis as the primary mirror.
  • a secondary mirror that has a rotationally symmetrical reflective surface that reflects the primary reflected light from the primary mirror as secondary reflected light and condenses it at the viewpoint, and supports the primary and secondary mirrors and transmits incident light
  • a transmitting part is provided on at least one of the primary mirror and the secondary mirror, and the light is reflected from the target object through the transmitting part in the direction of the secondary mirror or the viewpoint. Provided with a flat mirror.
  • the primary mirror and the secondary mirror can reflect the incident light incident at a wide angle as primary reflected light on the primary mirror to the secondary mirror, and the primary reflected light is reflected on the secondary mirror by the secondary mirror. It is collected as reflected light at the viewpoint. Therefore, it becomes possible to condense wide-angle incident light to the viewpoint.
  • At least one of the primary mirror and the secondary mirror transmits the incident light reflected by the plane mirror and converges the primary mirror and the secondary mirror to the above viewpoint.
  • the incident light transmitted through the transmitting portion together with the reflected light reflected by the light source can be radiated to the viewpoint, and the direction of the incident light transmitted through the transmitting portion can be changed by rotating the rotatably supported plane mirror. Can be changed.
  • the primary and secondary mirrors can be made of materials such as metal.
  • a reflection type angle-of-view conversion optical device includes a primary mirror having a rotationally symmetrical reflecting surface and reflecting incident light as primary reflected light, and a center of rotation about the same rotationally symmetric axis as the primary mirror.
  • a secondary mirror that has a rotationally symmetrical reflective surface that reflects the primary reflected light from the primary mirror as secondary reflected light and condenses it at the viewpoint, and supports the primary and secondary mirrors and transmits incident light
  • At least one of the primary mirror and the secondary mirror is divided into a plurality in the circumferential direction of the rotationally symmetric axis, and the angle formed by the rotationally symmetric axis and the incident light, the rotationally symmetric axis, and the secondary
  • the shape of the plurality of divided reflecting surfaces is shaped so that the angles formed by the reflected light are different from each other.
  • the incident light that is incident at a wide angle is reflected by the primary mirror and the secondary mirror as primary reflected light by the primary mirror to the secondary mirror, and the primary reflected light is reflected by the secondary mirror.
  • at least one of the primary mirror and the secondary mirror has a reflective surface that is divided into multiple parts in the circumferential direction of the rotation axis. .
  • the primary mirror and the secondary mirror can be processed with materials such as metal.
  • a reflection type angle-of-view conversion optical device includes a primary mirror having a rotationally symmetrical reflecting surface and reflecting incident light as primary reflected light, and a center of rotation about the same rotationally symmetric axis as the primary mirror.
  • a secondary mirror that has a rotationally symmetric reflection surface, reflects the primary reflected light from the primary mirror as secondary reflected light, and condenses it at the viewpoint, and supports the primary and secondary mirrors and also has a rotationally symmetric axis.
  • a supporting rotary drive member that is driven to rotate around the center and transmits incident light from the object, and condensed at its viewpoint And a storage unit for storing the obtained secondary reflected light.
  • At least one of the primary mirror and the secondary mirror is divided into a plurality of parts in the circumferential direction of the rotational symmetry axis, and the rotational axis and the incident light are The shape of the plurality of divided reflective surfaces is shaped so that the angle formed, the angle of rotation symmetry axis, and the angle formed by the secondary reflected light are different from each other.
  • the primary mirror and the secondary mirror reflect the incident light that is incident at a wide angle to the secondary mirror as primary reflected light at the primary mirror, and the primary reflected light is reflected at the secondary mirror at the secondary mirror. It is focused on the viewpoint as reflected light. Therefore, it becomes possible to condense wide-angle incident light to the viewpoint.
  • At least one of the primary mirror and the secondary mirror is rotated in the circumferential direction of the rotationally symmetric axis by the supporting rotary drive member, and the secondary reflected light collected at the viewpoint is stored in the storage unit.
  • the primary mirror and the secondary mirror can be processed with materials such as metal.
  • a reflection type angle-of-view conversion optical device includes a primary mirror having a rotationally symmetrical reflecting surface and reflecting incident light as primary reflected light, and a center of rotation about the same rotationally symmetric axis as the primary mirror.
  • a secondary mirror that has a rotationally symmetrical reflective surface that reflects the primary reflected light from the primary mirror as secondary reflected light and condenses it at the viewpoint, and supports the primary and secondary mirrors and transmits incident light
  • At least one of the primary mirror and the secondary mirror is divided into a plurality of different concentric partial mirrors, and the angle between the rotationally symmetric axis and the incident light, the rotationally symmetric axis, and the secondary
  • the shape of the reflecting surfaces of the plurality of divided partial mirrors is shaped so that the angles formed by the reflected light are different from each other.
  • the primary mirror and the secondary mirror use the primary mirror to reflect the incident light that is incident at a wide angle as primary reflected light to the secondary mirror, and the primary reflected light is reflected by the secondary mirror. Focus on the viewpoint as secondary reflected light. Therefore, it becomes possible to condense wide-angle incident light to the viewpoint. Also, at least one of the primary and secondary mirrors The reflecting surface divided into a plurality of concentric circles enables different types of wide-angle incident light to be simultaneously focused on the viewpoint. Further, the primary mirror and the secondary mirror can be processed with materials such as metal.
  • a reflection type angle-of-view conversion optical device includes a primary mirror having a rotationally symmetrical reflecting surface and reflecting incident light as primary reflected light, and a center of rotation about the same rotationally symmetric axis as the primary mirror.
  • a secondary mirror that has a rotationally symmetrical reflective surface, reflects the primary reflected light from the primary mirror as secondary reflected light, and condenses it at the viewpoint.
  • a support member for transmitting incident light At least one of the primary mirror and the secondary mirror is formed of a flexible material, and a driving device for deforming the mirror made of the flexible material is provided.
  • the reflection-type angle-of-view conversion optical device includes a primary mirror having a rotationally symmetric reflection surface and reflecting incident light as primary reflected light, and a rotationally symmetric axis identical to the primary mirror.
  • a secondary mirror that has a reflective surface that is rotationally symmetrical about the center and reflects the primary reflected light from the primary mirror as secondary reflected light and condenses it at the viewpoint, and supports the primary and secondary mirrors and targets And a supporting member that transmits incident light from the light source, and the shape of the supporting member is formed so that the transmitting surface is perpendicular to all incident light gathered at the viewpoint.
  • Primary reflection of incident light incident at a wide angle by primary mirror It is reflected to the secondary mirror as light, and the primary reflected light is focused on the viewpoint as secondary reflected light by the secondary mirror, so that wide-angle incident light can be focused on the viewpoint.
  • the support member that supports the primary mirror and the secondary mirror and transmits the incident light is shaped so that the transmission surface is perpendicular to all the incident light gathered at the viewpoint, thereby refracting the incident light. It is possible to allow the support member to pass through without the need.
  • the primary and secondary mirrors can be processed with materials such as metal
  • the reflection type angle-of-view conversion optical device includes a support member, a support rotation member, a primary mirror and a secondary mirror supported by a support movement member or a support rotation drive member, at least one of which has a different reflection surface. It was replaced by one having a shape.
  • the primary mirror and the secondary mirror reflect the incident light that is incident at a wide angle to the secondary mirror as primary reflected light at the primary mirror, and the primary reflected light is secondary reflected at the secondary mirror. It is focused on the viewpoint as reflected light. Therefore, it becomes possible to focus wide-angle incident light at the viewpoint.
  • the primary mirror and the secondary mirror can be processed with materials such as metal.
  • FIG. 1 is a partial cross-sectional view showing one embodiment of a reflection type angle-of-view conversion optical device according to the present invention
  • FIG. 2 is an explanatory diagram for explaining a design method of a secondary mirror. Is an explanatory diagram for explaining the design method of the primary mirror
  • FIG. 4 is an explanatory diagram for explaining the curvature of the mirror surface in the radial and circumferential directions
  • FIG. 5 is an illustration of the image.
  • FIG. 6 is a diagram showing a rotating body
  • FIG. 7 is an explanatory diagram for explaining transformation of a coordinate system
  • FIG. 8 is an explanatory diagram for explaining image distance
  • FIG. Fig. 9 shows the position of the line image generated by the curvature of the mirror surface in the radial direction.
  • FIG. 10 shows the position of the line image generated by the curvature of the mirror surface in the circumferential direction.
  • FIG. 11 is a partial cross-sectional view showing one embodiment of the reflection type angle-of-view conversion optical device according to the present invention.
  • FIG. 12 is a reflection type angle-of-view conversion optical device according to the present invention.
  • FIG. 13 is an explanatory diagram for explaining a design method of one embodiment of the present invention.
  • FIG. 13 is an explanatory diagram for explaining a design method of one embodiment of the reflection-type angle-of-view conversion optical device according to the present invention.
  • FIG. 1 is a partial cross-sectional view showing an embodiment of a reflection-type angle-of-view conversion optical device according to the present invention.
  • FIG. 15 is a view showing an embodiment of a reflection-type angle-of-view conversion optical device according to the present invention.
  • FIG. 16 is a partial cross-sectional view showing one embodiment of the reflection type angle-of-view conversion optical device according to the present invention.
  • FIG. 17 is a reflection type view angle conversion according to the present invention.
  • FIG. 18 is a partial cross-sectional configuration view showing an embodiment of an optical device.
  • FIG. 18 is a partial view showing a reflection type angle-of-view conversion optical device according to the present invention.
  • FIG. 19 is a plan view showing an image obtained by the apparatus shown in FIG. 18, and
  • FIG. 20 is a partial view showing an embodiment of a reflection type angle-of-view conversion optical apparatus according to the present invention.
  • FIG. 21 is a partial cross-sectional view showing one embodiment of a reflection type angle-of-view conversion optical device according to one embodiment of the present invention.
  • FIG. FIG. 23 is a plan view showing an obtained image
  • FIG. 23 is a partial cross-sectional view showing one embodiment of the reflection type angle-of-view conversion optical device according to the present invention
  • FIG. 25 is a partial cross-sectional view showing one embodiment of the reflection type angle-of-view conversion optical device according to the present invention
  • FIG. 26 is a reflection type angle of view according to the present invention.
  • FIG. 27 is a partial cross-sectional configuration diagram showing one embodiment of the conversion optical device.
  • FIG. 27 is a diagram showing one embodiment of the reflection type angle-of-view conversion optical device according to the present invention.
  • FIG. 28 is a plan view showing an image obtained by the apparatus of FIG. 27, and FIG. 29 is an embodiment of the reflection type angle-of-view conversion optical apparatus according to the present invention.
  • FIG. 30 is a partial cross-sectional view showing one embodiment of a reflection type angle-of-view conversion optical device according to the present invention.
  • FIG. 31 is a cross-sectional view showing a conventional ultra-wide-angle lens.
  • Fig. 32 Fig. 32 shows the reflection of a conventional Cassegrain-type reflection telescope. It is sectional drawing which shows a mirror. BEST MODE FOR CARRYING OUT THE INVENTION
  • FIG. 1 is a partial cross-sectional view showing a reflection type angle-of-view conversion optical apparatus according to an embodiment of the present invention.
  • reference numeral 8 denotes a primary mirror having a reflection surface that is rotationally symmetric with respect to an axis of rotational symmetry 9.
  • Reference numeral 10 denotes a secondary mirror which has a reflection surface which is rotationally symmetric about the same rotationally symmetric axis 9 as that of the primary mirror 8, and which is arranged on the object (not shown) side of the primary mirror 8. is there.
  • 1 1 is a transparent cover as a support member that supports the primary mirror 8 and the secondary mirror 10 and transmits the incident light 12 from the object, 13 is the primary reflected light reflected by the primary mirror 8, 1 Reference numeral 4 denotes the secondary reflected light reflected by the secondary mirror 10, reference numeral 15 denotes a lens fixed to the primary mirror 8 about the rotational symmetry axis 9, and reference numeral 16 denotes a CCD camera to which the lens 15 is attached.
  • Incident light 12 arriving from a wide-angle object is reflected by primary mirror 8 as primary reflected light 13 to secondary mirror 10, and primary reflected light 13 is reflected by secondary mirror 10. It is focused on the lens 15 as the secondary reflected light 14. At this time, an image can be obtained by imaging the image condensed by the secondary mirror 10 through the lens 15 with the CCD camera 16c.
  • the shapes of the primary mirror 8 and the secondary mirror 10 are as follows. Can be designed. Since the primary mirror 8 and the secondary mirror 10 are rotationally symmetric, their shapes are determined by determining their cross-sectional shapes.
  • FIG. 2 is an explanatory view for explaining the design method of the secondary mirror 10.
  • reference numeral 17 denotes a viewpoint
  • the origin of the coordinates of the viewpoint 17 is set to 0
  • the horizontal axis is the X axis
  • the vertical axis is the vertical axis.
  • the axis be the y-axis.
  • This viewpoint 17 is the position of the lens 15.
  • S a point on the inner circumference of the secondary mirror 1 0, S 2 a point on the outer circumference of the secondary mirror 1 0, M, is a point on the inner periphery of the primary mirror 8.
  • Fig. 3 shows how to design the primary mirror 8.
  • P is a point on the reflecting surface of the primary mirror 8
  • P 2 is a point on the reflecting surface of the secondary mirror 10
  • the angle, ⁇ is the angle of incidence of the secondary reflected light 14 on the lens 15.
  • the primary mirror 8 is designed by giving the following conditions.
  • the cross-sectional shape of the reflecting surface of the secondary mirror 10 in “condition 1” is not set arbitrarily, but “primary reflected light incident on the point S 2 on the outer circumference of the secondary mirror 10 in“ condition 2 ”.
  • the primary reflection beam 1 3 is a light reflected by points on the periphery of the primary mirror 8, a point on the outer periphery of the primary mirror 8 in the c second diagram present in the optical path, the secondary mirror 1 0
  • the reflection surface has an inclination such that the primary reflected light 13 coming from the point M at the point S is reflected in the direction of the viewpoint 17, and the primary reflected light 13 at the set inclination is seen at the point S 2.
  • the shape, position, and size of the reflecting surface of the secondary mirror 10 satisfying the above conditions are set.
  • the method of calculating the aberration of the reflection-type angle-of-view conversion optical device that is, the method of obtaining the position of the line image generated by the curvature in the radial and circumferential directions of the mirror surface will be described.
  • “Telescope optics for astronomical amateurs, reflection Z Yoshida Taro, (1988), Seibundo Shinkosha, p. 104 ” is an explanatory diagram for explaining the line image, in which 23 is a linear image.
  • the radius of curvature of the mirror surface in the radial direction and that of the circumferential direction are different, and the image distance in the plane 19 (distance between the mirror surface and the image) and the image distance in the plane 20 are different
  • two line images 23 are generated as shown in Fig. 5.
  • the radius of curvature is the reciprocal of the curvature. If the inclination of the tangent plane at point ⁇ is ⁇ , the following relationship is obtained.
  • FIGS. 8 (A) and (B) are illustrations for explaining the image distance.
  • FIG. 8 (A) shows the case where the mirror surface is concave
  • FIG. 8 (B) shows the case where the mirror surface is convex. is there.
  • T is the position of the object to be viewed
  • Q is the reflection point
  • F is the position of the connected image
  • q is the image distance from the reflection point Q to the image position F
  • 1 is the reflection point from the object T.
  • the distance to Q is the curved surface of the mirror (here the curve)
  • n —— 2 (-a, 1)
  • the vector in the reflected light direction can be obtained by rotating the vector in the normal direction (one ⁇ , 1) by 7. That is, smr COST 8 1 no (one (asiner cosy)
  • Equation (49) Becomes Using Equations (50) and (51), differentiating Equation (49) with gives dk _ ( 1 ) 2 / cl + cosr
  • FIG. 9 is a view for showing the position of a line image 23 generated by the curvature of the mirror surface in the radial direction.
  • 23 a denotes a line image generated by the curvature of the primary mirror 8, and 23 b the line image caused by the curvature of the secondary mirror 1
  • Q m is the reflection point of the primary mirror
  • Q s is the reflection point of the secondary mirror
  • q rm the image distance to the line image 2 3 a from the reflection point Q m
  • Q r Is the distance from the reflection point Q s to the line image 23 b
  • 7 m is the incident angle of the incident light 12 on the primary mirror 8 in the radial direction
  • 7 s is the primary reflected light 1 3 in the radial direction.
  • Trm ⁇ ⁇ ⁇ (54) Since f 1 ( ⁇ ), the image distance q rm can be calculated from equation (53).
  • FIG. 10 is an explanatory diagram for explaining the method of calculating the position of the line image 23 generated by the curvature of the mirror surface in the circumferential direction.
  • 23 c denotes the line image generated by the curvature of the primary mirror 8.
  • 23 d is the line image caused by the curvature of the secondary mirror 10
  • q c J or the image distance from the reflection point Q m to the line image 23 c
  • q cs is the image distance from the reflection point Q s to the line image 23 d Distance.
  • the ray does not reflect in the direction of the line of sight unless it is incident perpendicularly to the circumferential direction, so the angle of incidence on the primary and secondary mirrors is 0 degrees.
  • the radius of curvature r of the mirror surface of the primary mirror 8 in the circumferential direction is given by Equation (27). Therefore , the image distance Q cm is
  • FIG. 11 is a partial sectional view showing a reflection type angle-of-view conversion optical device according to an embodiment of the present invention.
  • reference numeral 24 denotes a field of view of a lens 15.
  • FIG. 12 is a partial cross-sectional view showing a reflection type angle-of-view conversion optical device according to an embodiment of the present invention.
  • FIG. 13 is an explanatory diagram for explaining a design method of a reflection type angle-of-view conversion optical device according to one embodiment of the present invention.
  • the projection method is set to the equidistant projection by replacing equation (12) with the following equation.
  • an equidistant projection image which is an image equidistant with respect to the angle 6 of the incident light 1 2, can be obtained, and is used for observing the position of stars in astronomical observation, etc. If it is, it can be observed accurately and is effective.
  • the projection method is set to be an equal solid angle projection by setting Expression (12) as the following expression. + cos3 ⁇ 4
  • the projection method can be set to the orthographic projection by setting Expression (12) as the following expression. No (64) Embodiment 7.
  • the projection method can be changed to a stereoscopic projection by setting Expression (12) as the following expression. (65) Embodiment 8.
  • FIG. 14 is a partial sectional view showing a reflection type angle-of-view conversion optical device according to an embodiment of the present invention.
  • reference numeral 8a denotes a primary mirror.
  • the primary mirror 8a has a rotationally symmetric shape, and is constituted by concentric partial mirrors 8aa and 8ab having different angles of view.
  • the primary mirror 8a is slidably supported in the direction of the rotationally symmetric axis 9 by a support moving member (not shown) that transmits the incident light, and can be fixed at the position A or B shown in the drawing. ing.
  • the primary mirror 8a may be composed of three or more partial mirrors. In such a case, the type of angle of view can be obtained according to the number of partial mirrors.
  • FIGS. 15 (A), (B) and (C) are partial sectional views showing a reflection type angle-of-view conversion optical device according to an embodiment of the present invention.
  • reference numerals 10a and 10b denote secondary mirrors each having a rotationally symmetrical reflecting surface. These secondary mirrors 10a and 10b are supporting rotations that transmit incident light from an object.
  • the member 11a is rotatably supported about a rotation axis (not shown) perpendicular to the rotational symmetry axis 9 of the primary mirror 8 to rotate the support rotation member 11a.
  • one of the two sub-mirrors 10 a and 10 b is selectively combined with the primary mirror 8 to set the rotationally symmetric axis of the secondary mirror 10 a or 10 b to the primary mirror 8. It can be adapted to the rotational symmetry axis 9.
  • the secondary mirrors 10a and 10b have different reflecting surface shapes.
  • the CCD camera 16 is equipped with a telephoto lens 15a. This device can be seen in a wide field of view 24 using the secondary mirror 10a in the state of FIG. 15 (A), and rotates the supporting rotating member 11a in the state of FIG. 15 (B).
  • FIGS. 16 (A) and (B) are partial sectional views showing a reflection type angle-of-view conversion optical device according to an embodiment of the present invention.
  • reference numerals 8b and 8c denote primary mirrors each having a reflection surface having a rotationally symmetric shape. These primary mirrors 8b and 8c are perpendicular to the rotational symmetry axis 9 by the supporting moving member 1lb.
  • the main mirror 8b and 8c can be selectively positioned at a position facing the secondary mirror 10, and the rotationally symmetric axis of the primary mirror 8b or 8c can be Can be made to coincide with the rotational symmetry axis 9 of.
  • these primary mirrors 8b and 8c have different reflecting surface shapes. In the state shown in Fig.
  • this device can be viewed in a wide field of view 24 using the primary mirror 8b, and the primary mirror is switched by sliding the supporting and moving member 11b.
  • the main It can be seen in the field of view using mirror 8c (a different field of view than when using primary mirror 8b). That is, two types of angle of view can be selected. Also, the number of primary mirrors can be three or more to obtain three or more angles of view. Also, it goes without saying that the same effect can be obtained by attaching a plurality of sub-mirrors to the supporting / moving member instead of providing a plurality of primary mirrors.
  • FIG. 17 is a partial sectional view showing a reflection type angle-of-view conversion optical device according to an embodiment of the present invention.
  • reference numeral 8d denotes a primary mirror, and this primary mirror 8d is slidably supported in the direction of the rotationally symmetric axis 9 by a supporting and moving member (not shown).
  • the reflecting surface of the primary mirror 8d is such that the incident light 12 and the secondary reflected light 14 have a different relationship depending on the distance between the slid primary mirror 8d and the secondary mirror 10. It is molded into. Therefore, since the primary mirror 8 d can be fixed at any position between A and B, the CCD camera 16 can continuously change the field of view 24 by moving the primary mirror 8 d .
  • FIG. 18 is a partial sectional view showing a reflection type angle-of-view conversion optical device according to an embodiment of the present invention.
  • reference numeral 10c denotes a sub-mirror, and the sub-mirror 10c has a transmitting portion 25 that transmits the incident light 12.
  • 15a is a telephoto lens.
  • FIG. 19 is an image obtained by the apparatus of the present embodiment.
  • 26 is an image of the secondary reflected light 14 reflected by the secondary mirror 10 c.
  • 27 is an secondary mirror 10 c This is an image of the incident light 12 directly transmitted through the transmission part 25 of FIG. In this way, if you attach a telephoto lens 15a to the CCD camera 16, you can see a wide-angle image and a direct image at the same time.
  • FIG. 20 (A) and (B) are partial cross-sectional views showing a reflection type angle-of-view conversion optical device according to an embodiment of the present invention.
  • 28 is above the secondary mirror 10c It is a plane mirror provided in the section.
  • a transmission part 25 for transmitting the incident light 12 is provided in the secondary mirror 10c
  • a telephoto lens 15a is mounted on the CCD camera 16, and two plane mirrors are further mounted.
  • a wide-angle image through the mirror and a direct image without both mirrors can be viewed at the same time, and the position and angle of the plane mirror 28 can be changed appropriately as shown in Fig. 20 (B).
  • the direction of the central visual field 24 can be freely changed.
  • the number and arrangement of the plane mirrors are not particularly limited.
  • FIG. 21 is a partial sectional view showing a reflection type angle-of-view conversion optical device according to an embodiment of the present invention.
  • 8 e and 8 f are primary mirrors divided into two in the circumferential direction of the rotationally symmetric axis 9 (not shown), and these primary mirrors 8 e and 8 f are the angle of the incident light 12 and the secondary
  • the shape of each reflecting surface is shaped so that the angle of the reflected light 14 and the angle of the reflected light are different from each other.
  • FIG. 22 is an image obtained by the apparatus of the present embodiment, in which 29 is an image obtained by the primary mirror 8e, and 30 is an image obtained by the primary mirror 8f.
  • the primary mirrors 8e and 8f are rotated by a supporting rotary driving member (not shown), and the images before and after the primary mirrors 8e and 8f are rotated 180 degrees around the rotational symmetry axis 9. Is stored in a storage unit or the like, and by combining these images later, an image around the rotation symmetry axis 9 at each angle of view can be created.
  • the primary mirror 8 is divided into two parts.
  • the primary mirror 8 can be viewed at three or more kinds of angles of view.
  • the secondary mirror 10 is similarly divided in the circumferential direction. It goes without saying that the same effect can be obtained even if the crack is made.
  • FIG. 23 is a partial sectional view showing a reflection type angle-of-view conversion optical device according to an embodiment of the present invention.
  • 8 g is a primary mirror. This primary mirror 8 g is divided into two concentric partial mirrors 8 ga and 8 gb, and the angle of the incident light 1 2 and the angle of the secondary reflected light 14 The shape of each of the divided reflecting surfaces is shaped so that the angles have different relationships.
  • FIG. 24 is an image obtained by the apparatus according to the present embodiment, in which 31 is an image obtained by the partial mirror 8 g a, and 32 is an image obtained by the partial mirror 8 g b.
  • the primary mirror 8 g Due to the shape of the reflecting surfaces of the partial mirrors 8 g a and 8 g b, two types of objects 24 around the rotationally symmetric axis 9 can be simultaneously viewed.
  • the primary mirror 8 g is divided into two parts. However, by dividing the primary mirror 8 g into three or more, the primary mirror 8 g can be viewed at three or more angles of view. It goes without saying that the same effect can be obtained by dividing.
  • FIG. 25 is a partial sectional view showing a reflection type angle-of-view conversion optical device according to an embodiment of the present invention.
  • 8h is a primary mirror
  • the primary mirror 8h is formed of a flexible material.
  • Reference numeral 33 denotes an actuary (drive unit), which is mounted behind the reflecting surface of the primary mirror 8 h. Therefore, the driving surface of the mirror 33 deforms the reflecting surface of the primary mirror 8 h, and the relationship between the incident light 12 and the secondary reflected light 14 changes, thereby obtaining an infinite number of angles of view. be able to.
  • the secondary mirror may be formed of a flexible material, and may be formed into an arbitrary shape by the actor c.Example 17
  • FIG. 26 is a partial sectional view showing a reflection type angle-of-view conversion optical device according to an embodiment of the present invention.
  • 1 1 is a transparent cover as a support member
  • the transparent cover 11 is formed so that the tangent plane at the transmission point of the transparent cover 11 is perpendicular to all the incident light 12 collected at the viewpoint 17. Therefore, since the incident light 12 does not refract when passing through the transparent cover 11, the incident angle of the incident light does not change.
  • FIG. 27 is a partial sectional view showing a reflection type angle-of-view conversion optical device according to an embodiment of the present invention.
  • reference numeral 8i denotes a primary mirror
  • the reflection surface of the primary mirror 8i has a concave shape. Therefore, in the obtained image, the positions of the object in the front direction and the object in the side direction of the apparatus are reversed. That is, as shown in Fig. 28, an object with an incident angle 6 of 80 degrees appears in the center of the image, and an object with an incident angle 0 of 10 degrees appears in the periphery of the image. .
  • a concave primary mirror or a secondary mirror may be used as an embodiment of the invention described above.
  • FIGS. 29 (A) and (B) are partial sectional views showing a reflection type angle-of-view conversion optical device according to an embodiment of the present invention.
  • 8 j and 8 k are primary mirrors, and the primary mirrors 8 j and 8 k are made of a thin material having a mirror-like surface.
  • Reference numeral 34 denotes a primary mirror attraction plate, and the primary mirror attraction plate 34 and the primary mirrors 8j and 8k are joined at an outer peripheral portion and an inner peripheral portion.
  • Reference numeral 35 denotes a pump as a driving device, and reference numeral 36 denotes a pipe connecting the primary mirror suction plate 34 and the pump 35.
  • the primary mirror and the secondary mirror supported by the support member, the support rotation member, the support moving member or the support rotation drive member of the above embodiments 1 to 19 are detachable or exchangeable by sliding. It can be made freely, and in this case, an infinite number of angles of view can be obtained.
  • FIG. 30 is a partial sectional view showing a reflection type angle-of-view conversion optical device according to an embodiment of the present invention.
  • 15b is a lens for visible light
  • 15c is a lens for infrared rays
  • 16a is a CCD camera for visible light
  • 161 is an infrared camera (D camera). It can be used not only for light but also for infrared light and other electromagnetic waves.By changing the optical path of the secondary reflected light 14 by rotating a plane mirror 28 supported by itself, the visible light CCD can be used.
  • the above structure using visible light CCD camera 16a, infrared CCD camera 16b, etc. can be incorporated into each embodiment. But of course it is good.
  • Embodiment 22 The device of the present invention can also be used as a light projector by placing a light source or the like at the position of the CCD camera 16 in each of the above embodiments.
  • a primary mirror having a rotationally symmetric reflection surface and reflecting incident light as primary reflected light, and a rotationally symmetrical axis about the same rotationally symmetric axis as the primary mirror.
  • a sub-mirror that has a reflective surface with a shape and is arranged opposite to the primary mirror to reflect the primary reflected light as secondary reflected light and focus it on the viewpoint;
  • a supporting member that supports the secondary mirror and transmits the incident light, so that a wide angle of the incident light can be collected at the viewpoint, and an arbitrary angle of view can be obtained according to the design conditions. be able to.
  • a primary mirror and the secondary mirror can be processed with a material such as metal, the strength can be improved and the processing can be easily performed.
  • a reflection type angle-of-view conversion optical device having no chromatic aberration or absorption can be obtained.
  • a primary mirror having a rotationally symmetric shape and having a reflecting surface composed of a plurality of different partial mirrors and reflecting incident light as primary reflected light.
  • the primary mirror and the secondary mirror can be processed with a material such as metal, the strength can be improved and the processing can be easily performed.
  • a reflection type angle-of-view conversion optical device having no chromatic aberration or absorption can be obtained. is there.
  • a plurality of primary mirrors that reflect incident light as primary reflected light, and selectively combined with one of them to reflect primary reflected light as secondary reflected light and condense it at a viewpoint
  • the secondary mirror including: a secondary mirror; and a supporting rotary member that supports the secondary mirror, rotatably supports a plurality of primary mirrors around a rotation axis in an arbitrarily set direction, and transmits incident light.
  • the shape of the reflecting surface of the multiple primary mirrors should be shaped so that the angle between the rotational symmetry axis and the incident light and the angle between the rotational symmetry axis and the secondary reflected light have different relationships.
  • a primary mirror that reflects incident light as primary reflected light, and a plurality of primary mirrors selectively combined with the primary mirror to reflect primary reflected light as secondary reflected light and condense it at a viewpoint
  • a supporting rotating member that supports the primary mirror and rotatably supports a plurality of secondary mirrors around a rotation axis in an arbitrarily set direction and transmits incident light.
  • the shape of the reflecting surfaces of the multiple sub-mirrors is configured so that the angle between the rotationally symmetric axis and the incident light and the angle between the rotationally symmetric axis and the secondary reflected light have different relationships.
  • the primary mirror and the secondary mirror can be processed with a material such as a metal, the strength can be improved and the processing can be easily performed. Further, there is an effect that a reflection type angle-of-view conversion optical device having no chromatic aberration or absorption can be obtained. .
  • a plurality of primary mirrors that reflect incident light as primary reflected light, and a sub-mirror selectively combined with one of the primary mirrors to reflect primary reflected light as secondary reflected light and condense it at a viewpoint.
  • a primary mirror for reflecting incident light as primary reflected light and a plurality of primary mirrors selectively combined with the primary mirror for reflecting primary reflected light as secondary reflected light and condensing it at a viewpoint A sub-mirror, and a support moving member that supports the primary mirror and slidably supports a plurality of sub-mirrors in an arbitrary set direction and transmits incident light.
  • the supporting moving member By switching a plurality of sub-mirrors at, incident light at different wide angles can be collected at the viewpoint, and an arbitrary angle of view can be obtained.
  • the primary mirror and the secondary mirror can be processed with a material such as metal, the strength can be improved, the processing can be easily performed, and a reflection type angle-of-view conversion optical device having no chromatic aberration or absorption can be obtained. .
  • a primary mirror that reflects incident light as primary reflected light
  • a secondary mirror that reflects primary reflected light as secondary reflected light and condenses it at a viewpoint
  • the primary mirror and secondary mirror At least one of which is slidably supported in the direction of the rotationally symmetric axis of the primary mirror and the secondary mirror, and has a support moving member that transmits incident light from the object; and the rotationally symmetric axes of the primary and secondary mirrors and the incident light.
  • the shape of the reflecting surfaces of the multiple sub-mirrors such that the angle between the mirror and the rotationally symmetric axis and the angle of the secondary reflected light have a different relationship depending on the distance between the slid primary and secondary mirrors.
  • the angle between the primary mirror and the secondary mirror is adjusted by adjusting the distance between the primary and secondary mirrors using the supporting and moving member.
  • the angle of the secondary reflected light changes, and different angles of incident light can be collected at the viewpoint, and an arbitrary angle of view can be obtained.
  • the primary and secondary mirrors are made of metal or other material. Therefore, it is possible to obtain a reflection type angle-of-view conversion optical device which can improve the strength and can be easily processed, and has no chromatic aberration or absorption.
  • a primary mirror that reflects incident light as primary reflected light
  • a secondary mirror that reflects primary reflected light as secondary reflected light and condenses it at a viewpoint
  • a supporting member that transmits incident light
  • the transmission section transmits the incident light and condenses it at the viewpoint. It is possible to irradiate the viewpoint with the incident light that has passed through the transmitting part together with the reflected light.
  • the primary mirror and the secondary mirror can be processed with a material such as metal, the strength can be improved and the processing can be easily performed, and further, there is an effect that a reflection type angle-of-view conversion optical device having no chromatic aberration or absorption can be obtained.
  • a primary mirror that reflects incident light as primary reflected light
  • a secondary mirror that reflects primary reflected light as secondary reflected light and condenses it at a viewpoint
  • at least one of the primary mirror and the sub-mirror is provided with a transmission part, and the incident light is transmitted in the direction of the object to be viewed by the transmission part. Since a plane mirror for guiding to the part is attached, the transmitting part transmits the incident light, and the viewpoint can irradiate the viewpoint with the incident light transmitted through the transmitting part together with the secondary reflected light collected at the viewpoint.
  • the wide-angle image reflected by the primary mirror and the secondary mirror and the image transmitted through the transmission part of the primary mirror and reflected only by the secondary mirror can be viewed at the same time, and transmitted to the secondary mirror.
  • a mirror is provided, a wide-angle image reflected by the primary mirror and the secondary mirror and a direct image transmitted through the transmission part of the secondary mirror can be viewed at the same time, and the rotatably supported plane mirror is rotated.
  • the primary mirror and the secondary mirror can be processed with a material such as a metal, the strength can be improved and the processing can be easily performed.
  • a reflection type angle-of-view conversion optical device having no chromatic aberration or absorption can be obtained.
  • a primary mirror that reflects incident light as primary reflected light
  • a secondary mirror that reflects primary reflected light as secondary reflected light and condenses it at a viewpoint
  • a support member for transmitting incident light At least one of the primary mirror and the secondary mirror is divided into a plurality in the circumferential direction of the rotationally symmetric axis, and an angle between the rotationally symmetric axis and the incident light is formed.
  • the shape of the plurality of divided reflecting surfaces is formed so that the angle formed by the rotationally symmetric axis and the secondary reflected light is different from each other.
  • At least one reflecting surface that is divided into a plurality in the circumferential direction of the rotational symmetry axis can collect different types of incident light with a wide angle at the viewpoint at the same time, and obtain an arbitrary angle of view. it can.
  • the primary mirror and the secondary mirror can be processed with a material such as a metal, the strength can be improved and the processing can be easily performed. Further, there is an effect that a reflection type angle-of-view conversion optical device having no chromatic aberration or absorption can be obtained. .
  • a primary mirror that reflects incident light as primary reflected light
  • a secondary mirror that reflects primary reflected light as secondary reflected light and condenses it at a viewpoint
  • a supporting / rotating drive member that is driven to rotate about the axis of rotational symmetry of the primary mirror and the secondary mirror and transmits incident light
  • a storage unit that stores the secondary reflected light collected at the viewpoint.
  • the reflecting surface divided into a plurality of parts in the circumferential direction of at least one rotationally symmetric axis is rotated by the supporting rotary drive member, and the secondary reflected light collected at the viewpoint
  • the primary mirror and the secondary mirror can be processed with materials such as metal, Good and easy to process, and Aberration and absorbed without reflection angle conversion optical system can be obtained Has an effect.
  • a primary mirror that reflects incident light as primary reflected light
  • a secondary mirror that reflects primary reflected light as secondary reflected light and condenses it at a viewpoint
  • a support member for transmitting incident light At least one of the primary mirror and the secondary mirror is divided into a plurality of concentric circles, and the angle between the rotationally symmetric axis and the incident light and the rotationally symmetric axis are formed. And the angles formed by the secondary reflected light are different from each other, so that the shape of the divided reflecting surfaces is shaped so that at least one of the primary mirror and the secondary mirror is concentric.
  • the reflecting surface divided into a plurality of shapes can simultaneously collect a plurality of different types of incident light having a wide angle at a viewpoint, and can obtain an arbitrary angle of view.
  • the primary mirror and the secondary mirror can be processed with a material such as metal, the strength can be improved and the processing can be easily performed. Further, there is an effect that a reflection-type angle-of-view conversion optical device having no chromatic aberration or absorption can be obtained. .
  • a primary mirror that reflects incident light as primary reflected light
  • a secondary mirror that reflects primary reflected light as secondary reflected light and condenses it at a viewpoint
  • a supporting member that transmits incident light.
  • At least one of the primary mirror and the secondary mirror is formed of a flexible material, and a driving device is attached to the mirror. Can be focused on the viewpoint, and an arbitrary angle of view can be obtained by changing the shape of the mirror by the driving device. Further, since the optical system is constituted by a reflecting mirror, there is an effect that a reflection-type angle-of-view conversion optical device having no chromatic aberration or absorption can be obtained.
  • a primary mirror that reflects incident light as primary reflected light
  • a secondary mirror that reflects primary reflected light as secondary reflected light and condenses it at a viewpoint
  • a supporting member that transmits the incident light
  • the supporting member is shaped so that the transmitting surface is perpendicular to all the incident light gathered from the viewpoint. Focus on the viewpoint
  • the primary mirror and the secondary mirror supported by the support member, the support rotation member, the support movement member, or the support rotation drive member are configured to be exchangeable, so that the angle of view is infinite. Can be obtained.

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  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Lenses (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

L'invention se rapporte à un dispositif optique pour convertir l'angle de champ d'un dispositif d'imagerie ou similaire, la résistance mécanique étant améliorée et la fabrication étant facilitée grâce à l'utilisation d'un miroir réflecteur même dans un système optique à grand angle. Ce dispositif décrit comprend: un miroir principal (8) ayant une surface réfléchissante dont la forme présente une symétrie de rotation et qui sert à réfléchir la lumière incidente (12) pour produire une lumière réfléchie primaire (13); un sous-miroir (10), faisant face au miroir principal (8), ayant une surface réfléchissante dont la forme présente une symétrie de rotation par rapport à l'axe de symétrie de rotation du miroir principal (8), et réfléchissant la lumière réfléchie primaire (13) pour produire une lumière réfléchie secondaire (14), afin de focaliser celle-ci au niveau du point de vue; ainsi qu'un boîtier transparent (11) servant de support au miroir principal (8) et au sous-miroir (10) et laissant passer la lumière incidente (12).
PCT/JP1993/001743 1992-11-30 1993-11-30 Dispositif optique de conversion de l'angle de champ du type a reflexion WO1994012905A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE4396177T DE4396177T1 (de) 1992-11-30 1993-11-30 Optischer Sichtwinkel-Umwandlungsapparat vom Reflexionstyp
DE4396177A DE4396177C2 (de) 1992-11-30 1993-11-30 Panoramaspiegelobjektiv
JP51298394A JP3220462B2 (ja) 1992-11-30 1993-11-30 反射式画角変換光学装置及び製造方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP34110392 1992-11-30
JP4/341103 1992-11-30

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WO1994012905A1 true WO1994012905A1 (fr) 1994-06-09

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DE (1) DE4396177T1 (fr)
WO (1) WO1994012905A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09222561A (ja) * 1996-02-15 1997-08-26 Canon Inc ズーム光学系及びそれを用いた撮像装置
US6636360B1 (en) 1995-02-28 2003-10-21 Canon Kabushiki Kaisha Reflecting type of zoom lens
WO2005033766A1 (fr) * 2003-10-01 2005-04-14 Matsushita Electric Industrial Co., Ltd. Systeme optique grand angle, dispositif d'imagerie l'utilisant, systeme de traitement d'images, systeme d'imagerie sur vehicule, et projecteur
JP2010185651A (ja) * 2008-02-12 2010-08-26 Fn Herstal Sa 移動レッドドットを備える改良型照準装置
US8072693B2 (en) 2006-06-15 2011-12-06 Olympus Corporation Optical system
WO2017046901A1 (fr) * 2015-09-16 2017-03-23 オリンパス株式会社 Système optique et dispositif de capture d'image
JP2022516364A (ja) * 2019-01-08 2022-02-25 セントレ サイエンティフィーク エ テクニーク デュ バティマン（シーエスティービー） 赤外線検出器の為の副天井層の視覚アクセサリ
JP2022516363A (ja) * 2019-01-08 2022-02-25 セントレ サイエンティフィーク エ テクニーク デュ バティマン（シーエスティービー） 赤外線検出器の為の超広視野角アクセサリ

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4728034B2 (ja) 2005-04-25 2011-07-20 オリンパス株式会社 回転非対称光学系
JP4884085B2 (ja) 2006-06-09 2012-02-22 オリンパス株式会社 光学系

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5387727A (en) * 1977-01-13 1978-08-02 Minolta Camera Co Ltd Reflector type telephoto lens with flexible mirror
WO1982002609A1 (fr) * 1981-01-19 1982-08-05 Takahashi Toshihiko Systeme optique pour dispositif de detection d'intrus
JPS6262315A (ja) * 1985-09-13 1987-03-19 Goto Kogaku Kenkyusho:Kk リツチ−・クレチアン式天体望遠鏡の平坦化レンズ

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3229576A (en) 1962-11-21 1966-01-18 Donald W Rees Hyperbolic ellipsoidal real time display panoramic viewing installation for vehicles
FR2425085A1 (fr) * 1978-05-05 1979-11-30 Quantel Sa Objectif a longueur focale variable
US4395093A (en) * 1981-05-21 1983-07-26 The United States Of America As Represented By The Secretary Of The Navy Lens system for panoramic imagery
US4934805A (en) * 1986-11-12 1990-06-19 The Boeing Company Fixed step catoptric zoom system
US5087116A (en) * 1990-07-27 1992-02-11 Eastman Kodak Company Reflective image display including a first mirror and a Fresnel mirror

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5387727A (en) * 1977-01-13 1978-08-02 Minolta Camera Co Ltd Reflector type telephoto lens with flexible mirror
WO1982002609A1 (fr) * 1981-01-19 1982-08-05 Takahashi Toshihiko Systeme optique pour dispositif de detection d'intrus
JPS6262315A (ja) * 1985-09-13 1987-03-19 Goto Kogaku Kenkyusho:Kk リツチ−・クレチアン式天体望遠鏡の平坦化レンズ

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6636360B1 (en) 1995-02-28 2003-10-21 Canon Kabushiki Kaisha Reflecting type of zoom lens
US6639729B2 (en) 1995-02-28 2003-10-28 Canon Kabushiki Kaisha Reflecting type of zoom lens
JPH09222561A (ja) * 1996-02-15 1997-08-26 Canon Inc ズーム光学系及びそれを用いた撮像装置
WO2005033766A1 (fr) * 2003-10-01 2005-04-14 Matsushita Electric Industrial Co., Ltd. Systeme optique grand angle, dispositif d'imagerie l'utilisant, systeme de traitement d'images, systeme d'imagerie sur vehicule, et projecteur
US8072693B2 (en) 2006-06-15 2011-12-06 Olympus Corporation Optical system
JP2010185651A (ja) * 2008-02-12 2010-08-26 Fn Herstal Sa 移動レッドドットを備える改良型照準装置
WO2017046901A1 (fr) * 2015-09-16 2017-03-23 オリンパス株式会社 Système optique et dispositif de capture d'image
JP2022516364A (ja) * 2019-01-08 2022-02-25 セントレ サイエンティフィーク エ テクニーク デュ バティマン（シーエスティービー） 赤外線検出器の為の副天井層の視覚アクセサリ
JP2022516363A (ja) * 2019-01-08 2022-02-25 セントレ サイエンティフィーク エ テクニーク デュ バティマン（シーエスティービー） 赤外線検出器の為の超広視野角アクセサリ
US11892355B2 (en) 2019-01-08 2024-02-06 Centre Scientifique et Technique du Bâtiment (CSTB) Very wide-angle viewing accessory for infrared detector

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